263882253961 has 2 divisors, whose sum is σ = 263882253962. Its totient is φ = 263882253960.

The previous prime is 263882253931. The next prime is 263882254037. The reversal of 263882253961 is 169352288362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200614410000 + 63267843961 = 447900^2 + 251531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263882253961 is a prime.

It is not a weakly prime, because it can be changed into another prime (263882253931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131941126980 + 131941126981.

It is an arithmetic number, because the mean of its divisors is an integer number (131941126981).

Almost surely, 2^263882253961 is an apocalyptic number.

It is an amenable number.

263882253961 is a deficient number, since it is larger than the sum of its proper divisors (1).

263882253961 is an equidigital number, since it uses as much as digits as its factorization.

263882253961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 55.

The spelling of 263882253961 in words is "two hundred sixty-three billion, eight hundred eighty-two million, two hundred fifty-three thousand, nine hundred sixty-one".